<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
      <div slot="header" class="clearfix">
        <el-row :gutter="20">
          <el-col :span="7">
            <el-input
              placeholder="请输入内容"
              v-model="queryInfo.query"
              clearable
              @clear="getUserList"
            >
              <el-button
                slot="append"
                icon="el-icon-search"
                @click="getUserList"
              ></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true"
              >添加用户</el-button
            >
          </el-col>
        </el-row>
      </div>
      <div>
        <el-table :data="userList" style="width: 100%" border stripe>
          <el-table-column type="index" />
          <el-table-column prop="username" label="姓名" />
          <el-table-column prop="email" label="邮箱" />
          <el-table-column prop="mobile" label="电话" />
          <el-table-column prop="role_name" label="角色" />
          <el-table-column label="状态">
            <template slot-scope="scope">
              <el-switch
                v-model="scope.row.mg_state"
                @change="userStateChange(scope.row)"
              />
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
              <!-- 修改 -->
              <el-button
                type="primary"
                size="mini"
                icon="el-icon-edit"
                @click="showEditDialog(scope.row.id)"
              />
              <!-- 删除 -->
              <el-button
                type="danger"
                size="mini"
                icon="el-icon-delete"
                @click="deleteUser(scope.row.id)"
              />
              <!-- 分配角色 -->
              <el-tooltip
                content="分配角色"
                placement="top"
                effect="dark"
                :enterable="false"
              >
                <el-button
                  type="warning"
                  size="mini"
                  icon="el-icon-setting"
                  @click="setRole(scope.row)"
                />
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
        >
        </el-pagination>
      </div>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClose"
    >
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username" />
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password" />
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email" />
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile" />
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%">
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
        @close="editDisalogClose"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled />
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email" />
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile" />
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClose"
    >
      <div>
        <el-input v-model="userInfo.username">
          <template slot="prepend">当前用户</template>
        </el-input>
      </div>
      <div style="margin-top:15px">
        <el-input v-model="userInfo.role_name">
          <template slot="prepend">当前角色</template>
        </el-input>
      </div>
      <div style="margin-top:15px">
        &nbsp;&nbsp;&nbsp;&nbsp;分配角色&nbsp;&nbsp;&nbsp;&nbsp;
        <el-select v-model="selectedRoleId" placeholder="请选择" slot="append">
          <el-option
            v-for="item in rolesList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id"
          >
          </el-option>
        </el-select>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号码的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return cb()
      }
      // 返回一个错误提示
      cb(new Error('请输入合法的手机号码'))
    }
    return {
      // 获取用户列表参数
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      addDialogVisible: false,
      editDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加用户的表单数据验证
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 编辑用户信息
      editForm: {},
      // 修改用户表单验证对象
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 分配角色
      setRoleDialogVisible: false,
      userInfo: {},
      // 所有角色列表
      rolesList: [],
      selectedRoleId: null
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.userList = res.data.users
      this.total = res.data.total
    },
    /** 监听pagesize发生变化 */
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    /** 监听页码值改变 */
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    /** 监听swtich开关变化 */
    async userStateChange(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    /** 监听添加对话框关闭事件 */
    addDialogClose() {
      this.$refs.addFormRef.resetFields()
    },
    /** 添加用户 */
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')
        }
        this.addDialogVisible = false
        this.getUserList()
        this.$message.success('添加用户成功！')
      })
    },
    /** 展示编辑用户对话框 */
    async showEditDialog(id) {
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    /** 监听用户修改对话框关闭事件 */
    editDisalogClose() {
      this.$refs.editFormRef.resetFields()
    },
    /** 修改用户信息 */
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        )
        if (res.meta.status !== 200) {
          this.$message.error('更新用户信息失败')
        }
        this.getUserList()
        this.editDialogVisible = false
        this.$message.success('更新用户信息成功')
      })
    },
    /** 根据id删除用户 */
    async deleteUser(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    /** 分配角色 */
    async setRole(userInfo) {
      this.userInfo = userInfo
      // 获取所有的角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    /** 点击按钮分配角色 */
    async saveRoleInfo() {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色！')
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleId
        }
      )
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    /** 监听设置角色 */
    setRoleDialogClose() {
      this.selectedRoleId = ''
      this.userInfo = ''
    }
  }
}
</script>

<style lang="less" scoped></style>
